Earlier quoted context omitted.
The market of VFX, which without an Mac Pro, might end up going back to Windows or custom built Linux desktops, like many Hollywood studios did when migrating away from SGI, and Pro wasn't still an option.
I assume the tile based rendering architecture is the biggest footgun in the new Apple SoC's. It just doesn't scale with a lot of polygons. I don't see how they can solve this either.
I’m not sure I agree that a TBDR is bad for high poly counts. There’s nothing inherent to the architecture that I can think of that would limit it for pure polygon work. Usually the biggest hold up is full screen effects that need to work on the entire buffer but those are rare for VFX.